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Definition or meaning of the English word Air bladder
A sac or bladder full of air in an animal or plant; also an air hole in a casting. ().
An air sac; sometimes double or variously lobed; in the visceral cavity of many fishes. It originates in the same way as the lungs of air-breathing vertebrates; and in the adult may retain a tubular connection with the pharynx or esophagus. ().
